package demo;

import java.util.HashMap;

/**
 * 静态代码的初始化
 *
 * @author sun.ye
 * @since 2020-06-12 17:41
 */
public class StaticCode {
    static HashMap<String, String> stringStringHashMap = new HashMap<>();
    static String aStr;
    static {
        stringStringHashMap.put("1","1");
    }


    public static void main(String[] args) {
        HashMap<String, String> hashMap;
//        hashMap.put();
        System.out.println(aStr);
//        System.out.println(stringStringHashMap.get("1"));

        Long l = new Long(10002);

        System.out.println(l.toString());
    }
}